@misc{Enriques_Federigo_(1871–1946)_Elementi_1905,
 author={Enriques, Federigo (1871–1946)},
 editor={Amaldi, Ugo (1875–1957)},
 copyright={Public Domain},
 address={Bologna},
 howpublished={online},
 year={1905},
 publisher={Ditta Nicola Zanichelli},
 language={ita},
 type={Text},
 title={Elementi di geometria ad uso delle scuole secondarie superiori},
}